He has been working in the Internet industry since 1992 and developing for the web since 1995 for clients such as Apple Computer, Digital Equipment Corporation, Compaq, Palm Computing, Dow Jones, and Synopsys. Krieger is the co-founder of the software development consultant company Agorics, Inc., founded in 1993. In 2002 he wrote the book "Running Weblogs with Slash". [2]

From 2008 until 2014, Krieger was a software developer at Sony Pictures Imageworks, working on production- and workflow-management software. Currently Krieger is helping to bring forth a Star Trek like future at Nest Labs.